Supreme Court of Oklahoma March 1990 casesUnited Airlines, Inc v. State Bd. of EqualizationState ex Rel. Okl. Bar Ass'n v. BrewerKirschstein v. HaynesCity of Oklahoma City v. StateNguyen v. StateOkla. Broadcasters v. Okla. Tax Com'nMatter of R.J.WBaumgardner v. State ex Rel. DHSTimmons Oil Co., Inc. v. NormanSanchez v. City of Sand Springs